Cooled blowpipe or torch.



G. B. WILSON. COOLED BLOWPIPE 0R TORCH.

APPLICATION FILED APR. 5. I916.

Patented Sept. 26, 1916.

Witnesses Attorneys GREEN B. WILSON, OF'NEVADA, IOWA COOLET) BLOWPIPE ORTORCH.

Specification of Letters Patent.

Patented Sept. 26, 1916.

Application filed April 5, 1916. serial No. 89,140.

To all whom it may concern:

Be it known that I, GREEN B. \VILsoN, a citizen of the United States,residing at Nevada, in the county of Story and State of Iowa, haveinvented a new and useful Cooled Blowpipe or Torch, of which thefollowing is a specification.

The present invention appertains to blowpipes and torches, such as useacetylene gas mixed with oxygen, and it is'the object of the inventionto provide novel and improved means for cooling the blowpipe or torch,and especially the tip thereof, to prevent the excessive heating of thedevice which is objectionable for obvious and well known reasons.

The present invention embodies a fluid circulating chamber inclosing theblowpipe or torch and extending. to the tip thereof, whereby water, airor other suitable fluid can be circulated through said chamber toproduce the desired cooling effect.

It is also within the scope of the invention to provide a cooledblowpipe or torch which is comparatively simple, compact and inexpensivein construction, as well as being thoroughly practical, efficient andreliable 1n use.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

The invention is illustrated in the accompanying drawing, wherein Figurel is a longitudinal section of the improved structure, portions beingbroken away and others being shown in elevation.

Fig. 2 is an enlarged cross section on the line 22 of Fig. 1. Fig. 3 isa longitudinal section of a modified form of tip, and Flg. 41s an endview thereof. Fig. 5 istubular member 6 is welded 'or otherwise attachedto the other end of the chamber 1 to provide a fluid circulatingchamber.

There is a partition-7 between the chamber 1 and barrel 6, andsaidpartition is provided with a nipple 8 pro ecting into said chamber, andprovided at one side with a gas port or aperture 9. gas tube or pipe 10is disposed concentrically within the barrel 6 and has one end threadedor otherwise engaged within the nipple 8, so as to communicate with thechamber 1 by way of the aperture 9, and an oxygen tube 11 extendsthrough the tube 10, the nipple 8, and

the chamber 1, and is attached to the nipple 4 for the connection of theoxygen hose. The gas hose is connected to the nipple 3 to supply theacetylene or other gas into the chambe 1. The outer or forward end ofthe tube 11 projects out of the corresponding end of the tube 10, andthe said end of the tube 10 is contracted and weldedor otherwisesecured, as at 12, to the tube 11. The tube 11 is provided with one ormore apertures 13 adjacent the forward endof the tube 10, so that thegas can flow into the tube 11 by way of the apertures 13, therebyproviding the mixture which supports the needle flame.

. ater, air or other suitable cooling fluid is supplied into the barrel6 by means of atube or pipe 15 extending through the barrel- 6 andchamber 1 and connected at one end with the nipple, 5, and the fluidis-conducted out of the basal or butt end of the barrel 6 by means-of atube or pipe 14 having one 16, whereby the fresh inflowing fluid willbe-supplied directly adjacent the tip, where the cooling effect is mostneeded. The member 16 has an outturned flange 17 resting against the endof the barrel 6, and a union 18 is threaded upon the end of the barrel 6and has a. flange 19' overlapping the flange 17, whereby the -member 16is clamped in fluid tight engagement against the barrel. The member 16has a tubular portion 20 projecting inwardly from its apex and welded orotherwise secured, as at 21, .to the end of the tube 11.

The tip 22 has a nipple 23 threaded or otherwise removably engagedwithin the tubular portion 20, to provide the jet, various tips beingused interchangeably, and the tips can be removed from and applied tothemember 16 without the necessity of detaching or interfering with any ofthe other parts.

Figs. 3, 4, 5 and 6 illustrate different forms of tips, for providingtwo jets. The tip 22 illustrated in- Figs. 3 and 4 has a pair ofbranches or outlet apertures 2a. The tip 22 illustrated in Figs. 5 and 6is chambered, and has a pair of outlet apertures '25. With these tips, adouble jet is provided, and the apertures of the tips may be spaceddiflerent distances apart. The two-jet tip is of advantage, since twoparts which are spaced apart can be heated simultaneously, prior to.welding.

The blowpipe or torch is used in the ordinary manner for welding orsimilar purposes, and the cooling fluid in being supplied through thetube or pipe 15 will be directed from said tube into the tip member 16,there by cooling the tip in the most effective manner. From the tip, thewater flows backwardly through thebarrel 6, cooling the parts inclosedthereby, and flowing out by way of the tube 14. 'By using the coolingmeans, the blowpipe or torch can be handled more con veniently, the samebeing-kept cool, and this also eliminates the tendency for the parts towarp or otherwise become distorted.-

The present device can be used as a blow I pipe, welding torch, cuttingtorch, or for kindred other purposes. When a multiple flame tip is used,the volume of heat is increased materially without an appreciablelengthening of the flame. Any suitable number of outlet apertures can beused, and with the multiple jet tip, the greatest amount of heat can beapplied to the points where most needed/ Having thus described theinvention, 'what is claimed as new is:

1. A device of the character described,

embodying a fluid circulating barrel, a hollow tip member attached toone end thereof,

a blowpipe inclosed within the barrel and connected to said member, thevother end of the barrel having a fluid-outlet,- and a fluid supply pipeentering the last mentioned endof the barrel and extending to a pointwithin said member.

2. A device of the character described, em-- bodying a gas chamberhaving four hose ating through the aforesaid tube and connected toanother hose attaching portion and to the tip member, the oxygentubehaving an aperture communicating with the-first mentioned tube, ,a fluidoutlet tubev engaged through said partition land connected to anotherhose attachingportion, and a fluid supplying tube connected to thefourth hose attaching portion, extending through said partition andwithin the barrel to a point adjacent said tip member.

3. A device of the character described, embodying a chamber having fourhose attaching nipples, one for supplying gas into said chamber, abarrel having one end attached to said chamber, a tip memberatta'ched tothe other end of said barrel, there being a partition between saidchamber and barrel having a nipple projectlng into said chamber andprovided at one side with an aperture, a gas tube having one end engagedwithin the last mentioned nipple,.an oxygen tube extendingthrough thegastube, last mentioned nipple, and chamber, and connected to another ofthe first mentioned nipples, the oxygen tube being connected to the tipmember, the respective end of the gas oxygen tube having an aperturewithin the gas tube, a fluid discharge tube engaged through saidpartition and connected to another of the-first mentioned nipples, and afluid supplying tube connectedtol the fourth of the first mentionednipples and extending through said chamber, partition and within thebarrel and terminatmg adjacent said tip member. Y

In testimony that I claim the foregoing as my own, I have hereto aiiixedmy signature in the presence of two witnesses.

GREEN B, WILSON. 1 Witnesses E. R. JENSEN, B. O. REYNOLDS.

9'0 tube being secured to the oxygen tube, the

